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  <title>Deletes the metadata of the entry</title>
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  <div id="layout-content"><div id="pharfileinfo.delmetadata" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">PharFileInfo::delMetadata</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.3.0, PHP 7, PHP 8, PECL phar &gt;= 1.2.0)</p><p class="refpurpose"><span class="refname">PharFileInfo::delMetadata</span> &mdash; <span class="dc-title">Deletes the metadata of the entry</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-pharfileinfo.delmetadata-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>PharFileInfo::delMetadata</strong></span>(): <span class="type">bool</span></div>

  <p class="para rdfs-comment">
   Deletes the metadata of the entry, if any.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-pharfileinfo.delmetadata-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   No parameters.
  </p>

 </div>

 <div class="refsect1 returnvalues" id="refsect1-pharfileinfo.delmetadata-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns <strong><code>true</code></strong> if successful, <strong><code>false</code></strong> if the entry had no metadata.
   As with all functionality that modifies the contents of
   a phar, the <a href="phar.configuration.html#ini.phar.readonly" class="link">phar.readonly</a> INI variable
   must be off in order to succeed if the file is within a <span class="classname"><a href="class.phar.html" class="classname">Phar</a></span>
   archive.  Files within <span class="classname"><a href="class.phardata.html" class="classname">PharData</a></span> archives do not have
   this restriction.
  </p>
 </div>


 <div class="refsect1 errors" id="refsect1-pharfileinfo.delmetadata-errors">
  <h3 class="title">错误／异常</h3>
  <p class="para">
   Throws <span class="classname"><a href="class.pharexception.html" class="classname">PharException</a></span> if errors occurred while flushing
   changes to disk, and <span class="classname"><a href="class.badmethodcallexception.html" class="classname">BadMethodCallException</a></span> if
   write access is disabled.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-pharfileinfo.delmetadata-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-784">
    <p><strong>示例 #1 A <span class="function"><strong>PharFileInfo::delMetaData()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">try&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$a&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">Phar</span><span style="color: #007700">(</span><span style="color: #DD0000">'myphar.phar'</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$a</span><span style="color: #007700">[</span><span style="color: #DD0000">'hi'</span><span style="color: #007700">]&nbsp;=&nbsp;</span><span style="color: #DD0000">'hi'</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$a</span><span style="color: #007700">[</span><span style="color: #DD0000">'hi'</span><span style="color: #007700">]-&gt;</span><span style="color: #0000BB">delMetadata</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$a</span><span style="color: #007700">[</span><span style="color: #DD0000">'hi'</span><span style="color: #007700">]-&gt;</span><span style="color: #0000BB">setMetadata</span><span style="color: #007700">(</span><span style="color: #DD0000">'there'</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$a</span><span style="color: #007700">[</span><span style="color: #DD0000">'hi'</span><span style="color: #007700">]-&gt;</span><span style="color: #0000BB">delMetadata</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$a</span><span style="color: #007700">[</span><span style="color: #DD0000">'hi'</span><span style="color: #007700">]-&gt;</span><span style="color: #0000BB">delMetadata</span><span style="color: #007700">());<br />}&nbsp;catch&nbsp;(</span><span style="color: #0000BB">Exception&nbsp;$e</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;handle&nbsp;errors<br /></span><span style="color: #007700">}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
bool(false)
bool(true)
bool(false)
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-pharfileinfo.delmetadata-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="pharfileinfo.setmetadata.html" class="function" rel="rdfs-seeAlso">PharFileInfo::setMetadata()</a> - Sets file-specific meta-data saved with a file</span></li>
    <li class="member"><span class="function"><a href="pharfileinfo.hasmetadata.html" class="function" rel="rdfs-seeAlso">PharFileInfo::hasMetadata()</a> - Returns the metadata of the entry</span></li>
    <li class="member"><span class="function"><a href="pharfileinfo.getmetadata.html" class="function" rel="rdfs-seeAlso">PharFileInfo::getMetadata()</a> - Returns file-specific meta-data saved with a file</span></li>
    <li class="member"><span class="function"><a href="phar.setmetadata.html" class="function" rel="rdfs-seeAlso">Phar::setMetadata()</a> - Sets phar archive meta-data</span></li>
    <li class="member"><span class="function"><a href="phar.hasmetadata.html" class="function" rel="rdfs-seeAlso">Phar::hasMetadata()</a> - Returns whether phar has global meta-data</span></li>
    <li class="member"><span class="function"><a href="phar.getmetadata.html" class="function" rel="rdfs-seeAlso">Phar::getMetadata()</a> - Returns phar archive meta-data</span></li>
   </ul>
  </p>
 </div>


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